• In August 2025, a massive rock wedge of 63.5 million cubic meters fell into Tracy Arm fjord in Alaska, triggering a tsunami with a wave height of 481 meters.
  • The tsunami is the second highest ever recorded on Earth, but there were no casualties because it occurred early in the morning.
  • The cause was the retreat of the South Sawyer Glacier due to climate change, which had held the rock in place for centuries.
  • Scientists reconstructed the event using satellite imagery and seismic data, revealing that micro-earthquakes forewarned the landslide days before.
  • The area is a popular tourist destination; had the landslide occurred a few hours later, it could have been catastrophic.

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